feat: Proper error handling

- Bump version to 0.8.0
- Added discord error struct
- All errors now implement std::error::Error
- Implemented error handler instead of relying on default
- Fixed bug where you could send answer on a completed quest

src/config/mod.rs

@@ -6,7 +6,7 @@ use serde::{Deserialize, Serialize};
 use crate::{SquadObject, account::Account, error::Error, quest::Quest};
 
 /// Struct for containing paths to other (de-)serializable things
-#[derive(Serialize, Deserialize)]
+#[derive(Serialize, Deserialize, Debug)]
 #[serde(default)]
 pub struct Config {
     /// Path to config directory

src/error.rs

@@ -23,14 +23,26 @@ impl fmt::Display for Error {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {
             Self::IsNotAFile(path) => write!(f, "{path:?} is not a file"),
-            Self::IoError(error) => write!(f, "{error}"),
-            Self::TomlSerializeError(error) => write!(f, "{error}"),
-            Self::TomlDeserializeError(error) => write!(f, "{error}"),
+            Self::IoError(_) => write!(f, "io error"),
+            Self::TomlSerializeError(_) => write!(f, "TOML serialization error"),
+            Self::TomlDeserializeError(_) => write!(f, "TOML deserialization error"),
             Self::IsNotImplemented => write!(f, "implementation not found"),
         }
     }
 }
 
+impl std::error::Error for Error {
+    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+        match self {
+            Self::IsNotAFile(_) |
+            Self::IsNotImplemented => None,
+            Self::IoError(error) => Some(error),
+            Self::TomlSerializeError(error) => Some(error),
+            Self::TomlDeserializeError(error) => Some(error),
+        }
+    }
+}
+
 /// Error related to quest logic
 #[derive(Debug)]
 #[non_exhaustive]
@@ -47,6 +59,8 @@ impl fmt::Display for QuestError {
     }
 }
 
+impl std::error::Error for QuestError {}
+
 /// Error related to map logic
 #[derive(Debug)]
 #[non_exhaustive]
@@ -68,3 +82,5 @@ impl fmt::Display for MapError {
         }
     }
 }
+
+impl std::error::Error for MapError {}